“Also, this was interesting....he said Republicans are hard to poll because they are 5 times less likely to participate in polls in general.”
Many of the polls don’t even try to reach out to Republicans nearly as hard as they do Democrats. Up until this Spring, I’ve always been registered GOP. Never, not once, did I have a single pollster reach out to me during that tine: This spring- because I live in a state where you can do so- I switched to Democrat in the primary season to try to keep Sanders out. Sanders scares the crap out of me and I saw Joe as a weaker threat to Trump. So I switched to vote for Joe in the primary. In the months since I’ve been a Dem on the books (I am switching back next election) I have had several pollsters reach out to me. Again, when I was a Republican on the books for many years, I had ZERO.
Coincidence? Possibly. But it just seems too bizarre to be one.
Voters have fond memories of Biden - why, I don’t know but they do - Biden has +7 favorables and Trump is underwater. Biden is considered the moderate (regardless of reality - perception is reality) and is more acceptable to Democrats than Sanders.
Sanders was a weaker candidate - easily.